Westerns were popular as the Sixties began, Gunsmoke was number
one in 1960 and Bonanza on NBC dominated the ratings for almost
the entire decade. Westerns grew in popularity until the genre started
to go bust in the latter part of the decade.

The story of orphaned
kids heading to Wyoming, where their parents had staked out land
(the parents died in the first episode). Along the way they befriend
an Indian who joins them and serves as protector and an evil land
baron who tries to trick them out of their father's land.